Table 3

Finger joint space width reduction estimated by computer-aided joint space analysis for distal-interphalangeal articulation

Z-Score


Average Sharp Score for joint space narrowing

DIP (index finger)

DIP (middle finger)

DIP (ring finger)

DIP (little finger)

DIP (total)


0

-0.01 ± 1.20

-0.18 ± 1.00

-0.07 ± 1.54

-0.03 ± 0.97

-0.14 ± 1.02

1

-0.33 ± 0.71

-0.20 ± 1.30

-0.18 ± 0.72

-0.35 ± 0. 85

-0.22 ± 0.78

2

-0.53 ± 1.27

-0.34 ± 1.02

-0.37 ± 1.06

-0.41 ± 1.03

-0.39 ± 0.77

3

-0.66 ± 1.28

-0.76 ± 1.35

-0.64 ± 1.61

-0.50 ± 1.71

-0.61 ± 1.18

Difference between score 0 and 3

0.65 ± 0.37

0.58 ± 0.38

0.57 ± 0.47

0.47 ± 0.47

0.47 ± 0.34

Significance, P

NS

NS

NS

NS

NS


Data presented as mean ± standard deviation. Reduction of finger joint space widths from score 0 to 3 using the average Sharp-van der Heijde score as estimated by computer-aided joint space analysis for the distal-interphalangeal (DIP) articulation. NS, not significant.

Pfeil et al. Arthritis Research & Therapy 2013 15:R27   doi:10.1186/ar4163

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